Solar flares on December 1, 2025
The most powerful solar flare in 24 hours
X1.9 (very strong) flare - December 1 at 5:49 AM
Solar activity index
Value as of the end of the day on December 1, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 30, 2025 to December 1, 2025
Time zone — UTC+03 (Moscow)
List of solar flares for December 1, 2025
The total number of solar flares of class C and higher — 8 flares
C class — 7 | M class — 0 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.2 | 22:12 | 22:19 | 22:21 | — |
| C3.2 | 21:51 | 22:01 | 22:12 | 4294 |
| C4.1 | 19:22 | 19:37 | 19:51 | 4294 |
| C3.5 | 17:16 | 17:23 | 17:28 | 4294 |
| C4.2 | 15:46 | 15:49 | 15:51 | 4296 |
| C6.0 | 12:54 | 13:14 | 13:56 | 4294 |
| C7.9 | 09:16 | 09:20 | 09:22 | 4296 |
| X1.9 | 05:27 | 05:49 | 06:05 | 4299 |